“Catnip” style in Eclipse/Dawn. Excellent condition, no scratches. Selling because no longer needed as I have blue light lenses built into my progressives. How to wear WHOOP Blue Light Glasses: Evening Lenses Designed for evening wear while getting ready for bed or winding down to go to sleep. Evening lenses block up to 60% of blue light. In testing, these lenses were associated with a: Decrease in participant’s resting heart rate by 2.3% (1.3 fewer beats per minute) Increase in heart rate variability by 3.5% (2.2 ms higher) Increase in WHOOP recovery score by 5.0% (3.2 points higher) Increase in total sleep by 3.0% (12.7 more minutes of sleep) All-Day Lenses Designed for all-day wear while you’re using a computer or mobile phone. All-Day Lenses block up to 30% of blue light. In testing, these lenses were associated with a: Decrease in participant’s resting heart rate by 1.9% (1.1 fewer beats per minute).